.page-faq {
  padding-bottom: 96px;
  background: var(--navy);
  color: var(--ivory);
}

.page-faq .container,
.page-faq .faq-shell {
  max-width: var(--content-max);
}

.page-faq .breadcrumbs {
  padding-top: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--rock);
}

.page-faq .breadcrumbs__link {
  color: var(--water);
  text-decoration: none;
}

.page-faq .breadcrumbs__link:hover {
  color: var(--aqua);
}

.page-faq .breadcrumbs__current {
  color: var(--mist);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  display: grid;
  gap: 32px;
  padding: 40px 0 8px;
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-size: clamp(2rem, 6.2vw, 3.4rem);
  font-weight: 300;
  line-height: 1.18;
  letter-spacing: 0.02em;
  color: var(--ivory);
}

.page-faq .faq-hero__lede {
  margin-top: 20px;
  max-width: 60ch;
  color: var(--mist);
}

.page-faq .faq-hero__media {
  position: relative;
  border-radius: var(--radius-c);
  overflow: hidden;
  border: 1px solid rgba(0, 180, 216, 0.28);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 29, 58, 0) 45%, rgba(5, 15, 30, 0.72) 100%);
  pointer-events: none;
}

/* ---------- 索引目录 ---------- */

.page-faq .faq-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 40px;
  padding: 24px 0 0;
  border-top: 1px solid rgba(168, 198, 216, 0.22);
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  border: 1px dashed rgba(0, 180, 216, 0.42);
  border-radius: 999px;
  color: var(--ivory);
  font-size: 14px;
  text-decoration: none;
  transition: background-color 0.2s var(--ease-out), border-color 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: rgba(0, 180, 216, 0.12);
  border-color: var(--aqua);
  color: var(--aqua);
}

.page-faq .faq-index__num {
  color: var(--aqua);
  font-size: 12px;
  letter-spacing: 0.14em;
}

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  margin-top: 72px;
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(0, 180, 216, 0.3);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.5rem, 4.6vw, 2.5rem);
  font-weight: 300;
  line-height: 1.22;
  letter-spacing: 0.02em;
  color: var(--ivory);
}

.page-faq .faq-group__index {
  flex: none;
  color: var(--aqua);
  font-size: 14px;
  letter-spacing: 0.18em;
}

.page-faq .faq-group__items {
  margin-top: 20px;
}

/* ---------- 折叠条目 ---------- */

.page-faq .faq-item {
  margin-top: 14px;
  border: 1px dashed rgba(168, 198, 216, 0.34);
  border-radius: var(--radius-a);
  overflow: hidden;
  background: rgba(15, 37, 71, 0.55);
  transition: border-color 0.2s var(--ease-out);
}

.page-faq .faq-item[open] {
  border-color: rgba(0, 245, 212, 0.55);
  background: transparent;
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 22px;
  cursor: pointer;
  list-style: none;
  color: var(--ivory);
  font-size: 16px;
  line-height: 1.6;
}

.page-faq .faq-item__q::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item[open] .faq-item__q {
  box-shadow: inset 4px 0 0 var(--aqua);
  color: var(--aqua);
}

.page-faq .faq-item__marker {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 4px;
}

.page-faq .faq-item__marker::before,
.page-faq .faq-item__marker::after {
  content: "";
  position: absolute;
  background: var(--water);
  transition: transform 0.2s var(--ease-out), background-color 0.2s var(--ease-out);
}

.page-faq .faq-item__marker::before {
  left: 4px;
  top: 10px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__marker::after {
  left: 10px;
  top: 4px;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__marker::after {
  transform: scaleY(0);
}

.page-faq .faq-item[open] .faq-item__marker::before {
  background: var(--aqua);
}

.page-faq .faq-item__a {
  background: var(--sand);
  color: var(--navy);
  border-left: 3px solid var(--water);
  padding: 20px 22px 24px;
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-item__a p {
  margin: 0 0 14px;
}

.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__a a {
  color: #0b6a83;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--navy);
}

.page-faq .faq-steps {
  margin: 0 0 14px;
  padding-left: 20px;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps li {
  padding-left: 4px;
}

.page-faq .faq-steps li::marker {
  font-family: var(--font-mono);
  color: #0b6a83;
}

/* ---------- 带图分组 ---------- */

.page-faq .faq-group__body {
  display: grid;
  gap: 28px;
  margin-top: 20px;
}

.page-faq .faq-group__items {
  margin-top: 0;
}

.page-faq .faq-group__body .faq-group__items {
  margin-top: 0;
}

.page-faq .faq-group__figure {
  margin: 0;
  border-radius: var(--radius-c);
  overflow: hidden;
  border: 1px solid rgba(0, 180, 216, 0.24);
  background: rgba(15, 37, 71, 0.5);
}

.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-group__figure .media-frame__caption {
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 收尾 ---------- */

.page-faq .faq-group--closing {
  margin-bottom: 24px;
}

.page-faq .faq-group--closing .faq-item {
  background: rgba(76, 99, 85, 0.28);
}

.page-faq .faq-group--closing .faq-item[open] {
  background: transparent;
}

/* ---------- 焦点可见性 ---------- */

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--water);
  outline-offset: 2px;
  border-radius: 999px;
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-group__items {
    display: grid;
    gap: 14px;
  }

  .page-faq .faq-item {
    margin-top: 0;
  }
}

@media (min-width: 960px) {
  .page-faq {
    padding-bottom: 128px;
  }

  .page-faq .faq-hero {
    grid-template-columns: 7fr 5fr;
    align-items: center;
    gap: 48px;
    padding-top: 56px;
  }

  .page-faq .faq-index {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-top: 56px;
  }

  .page-faq .faq-group {
    margin-top: 96px;
  }

  .page-faq .faq-group__body {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: 40px;
  }

  .page-faq .faq-item__q {
    font-size: 17px;
    padding: 20px 26px;
  }

  .page-faq .faq-item__a {
    padding: 24px 26px 28px;
    font-size: 16px;
  }
}

/* ---------- 窄屏：分组标题吸顶 ---------- */

@media (max-width: 699px) {
  .page-faq .faq-group__head {
    position: sticky;
    top: var(--bar);
    z-index: 2;
    background: var(--navy);
    padding-top: 10px;
  }

  .page-faq .faq-hero__title {
    font-size: clamp(1.75rem, 8vw, 2.4rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item,
  .page-faq .faq-item__marker::before,
  .page-faq .faq-item__marker::after {
    transition: none;
  }
}
<<<END>>>